Not just for this season — at 1-8, that’s long lost.

No, things are getting much uglier, on and off the field, to the point that coach Eric Mangini’s rebuilding operation appears doomed already.

The ouster of Mangini’s hand-picked general manager, George Kokinis, was one thing (albeit a strange and startling one). But when players and agents are openly ripping an organization from top to bottom, that’s a strong indication there are deeper issues — and it starts with Mangini.

Last week, running back Jamal Lewis accused Mangini of working players too hard and suggested he’ll retire after the season because of it. There have been rumblings of similar concerns almost from the day Mangini arrived in Cleveland, nine days after the New York Jets fired him in January.

There could be fallout from the perception Mangini benched quarterback Brady Quinn — and kept him there even as Derek Anderson played like a man throwing with the wrong arm — to avoid triggering $10.9 million of escalators in Quinn’s contract.

And it didn’t help when Mangini kept his starters on the field in the waning seconds of Monday’s 16-0 loss to Baltimore, having Quinn heave two Hail Marys and then running a lateral play that left the Browns’ only legitimate playmaker, star return man Joshua Cribbs, in the hospital with concussion symptoms.

Agent J.R. Rickert, who has been trying in vain to get the Browns to discuss a new contract for Cribbs, told the Cleveland Plain-Dealer he “can’t even put into words how upset I am at them for leaving him in like that.” Even a player on the other team, Ravens end Trevor Pryce, said he didn’t understand why Mangini would take such a risk.

Money trumps just about everything in professional sports, but it’s worth wondering what free agent would want to play for a team and coach that seem so hellbent on alienating everyone who wears a uniform.

Agent David Canter, who counts Ravens end Paul Kruger among his 13 clients on NFL rosters, reinforced that notion when he took to Twitter during Monday’s game.

“Chilling watching the terrible Browns,” Canter wrote. “Don’t think they have 35 legitimate players on their 53-man roster.”

Canter later lowered that estimate to 30, suggested ESPN analyst Jon Gruden “thinks Eric Mangini is a terrible coach” and added, “At least their uniforms are the right color — (expletive).”

If Browns owner Randy Lerner follows through on reported plans to hire a single man to oversee football operations — longtime NFL coach Mike Holmgren reportedly is the top candidate — the first major move for that man seems pretty obvious.

Get rid of Mangini.

Titanic turnaround

Only one team — the 1992 San Diego Chargers — has started 0-4 and made the NFL playoffs since they expanded to 12 teams in 1990.

What does that say about the Tennessee Titans’ chances for coming all the way back from their stunning 0-6 opening?

Well, for one thing, it would be the greatest in-season turnaround ever, hands down. And 10-6 might not be good enough to secure a playoff spot, considering the Indianapolis Colts (9-0) are running away with the AFC South Division and 11-5 wasn’t enough to get the New England Patriots a wild card last season.

But the Titans have gotten a spark from quarterback Vince Young, boast the NFL’s leading rusher (Chris Johnson, who’s already past the 1,000-yard mark) and are 30 percent of the way to running the table, with three straight wins since their bye. If nothing else, they’re keeping people interested in the second half after the disaster that was the season’s first six weeks.

“They’ve kind of gotten hot over the last three games,” said a scout whose team played the Titans this season. “The kid, Chris Johnson, he’s the guy that you’ve got to contain. Young is playing within himself, but really, what they’re doing is they’re checking the ball off, they’re screening, they’re doing all these things to get this guy in space, and he’s like a video game with the kind of speed he has.”

Bet on it